/**
 * Common Modal Styles for CA4E Tools
 * Provides consistent, functional modal styling across all tools
 */

/* Base modal styling */
.assignment-modal {
    position: fixed;
    background: white;
    border: 2px solid #007bff;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    z-index: 1000;
    width: 500px;
    max-width: 90vw;
    max-height: 85vh;
    
    /* Remove overflow from main modal - content should handle its own scrolling */
    overflow: visible;
    
    /* Ensure proper positioning */
    top: 10vh;
    left: 50%;
    transform: translateX(-50%);
}

.assignment-modal.hidden {
    display: none;
}

/* Modal header - draggable area */
.assignment-modal .modal-header {
    background: #007bff;
    color: white;
    padding: 12px 16px;
    cursor: grab;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 6px 6px 0 0;
    
    /* Prevent text selection during drag */
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.assignment-modal .modal-header:active {
    cursor: grabbing;
}

/* Close button */
.assignment-modal .close-btn {
    background: none;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.assignment-modal .close-btn:hover {
    background-color: rgba(255,255,255,0.2);
    border-radius: 50%;
}

/* Modal content - scrollable area */
.assignment-modal .modal-content {
    padding: 20px;
    background: white;
    border-radius: 0 0 6px 6px;
    
    /* This is where scrolling should happen if needed */
    max-height: calc(85vh - 60px); /* Account for header height */
    overflow-y: auto;
    
    /* Smooth scrolling */
    scroll-behavior: smooth;
}

/* Instructions section */
.assignment-modal #assignmentInstructions {
    margin-bottom: 20px;
    line-height: 1.6;
}

.assignment-modal #assignmentInstructions h3 {
    color: #007bff;
    margin-top: 0;
    margin-bottom: 15px;
}

.assignment-modal #assignmentInstructions h4 {
    color: #495057;
    margin-top: 20px;
    margin-bottom: 10px;
}

.assignment-modal #assignmentInstructions p {
    margin-bottom: 15px;
}

.assignment-modal #assignmentInstructions ul {
    margin-bottom: 15px;
    padding-left: 20px;
}

.assignment-modal #assignmentInstructions li {
    margin-bottom: 8px;
}

.assignment-modal #assignmentInstructions pre {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    padding: 12px;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.4;
}

.assignment-modal #assignmentInstructions code {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 3px;
    padding: 2px 4px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
}

/* Grading section */
.assignment-modal #gradingSection {
    border-top: 1px solid #eee;
    padding-top: 20px;
    margin-top: 20px;
}

.assignment-modal #gradingSection h3 {
    color: #28a745;
    margin-top: 0;
    margin-bottom: 15px;
}

/* Step display area */
.assignment-modal #stepDisplay {
    margin-bottom: 15px;
    min-height: 40px;
}

/* Button styling */
.assignment-modal button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s;
    margin-right: 10px;
    margin-bottom: 10px;
}

.assignment-modal button:hover {
    background-color: #0056b3;
}

.assignment-modal button:last-child {
    margin-right: 0;
}

.assignment-modal #gradeBtn,
.assignment-modal #startGradeBtn {
    background-color: #28a745;
}

.assignment-modal #gradeBtn:hover,
.assignment-modal #startGradeBtn:hover {
    background-color: #218838;
}

/* Grading step result styles */
.step-result {
    padding: 12px;
    border-radius: 6px;
    margin: 10px 0;
    font-weight: 500;
}

.step-passed {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.step-failed {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.final-result {
    padding: 15px;
    border-radius: 6px;
    margin: 15px 0;
    font-weight: bold;
    text-align: center;
}

.final-result.success {
    background-color: #d4edda;
    border: 2px solid #28a745;
    color: #155724;
}

.final-result.failure {
    background-color: #f8d7da;
    border: 2px solid #dc3545;
    color: #721c24;
}

/* Spinner animation for loading states */
.spinner-gear {
    display: inline-block;
    animation: spin 2s linear infinite;
    font-size: 20px;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Hint styling */
.hint-section {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    padding: 15px;
    border-radius: 4px;
    margin-top: 15px;
}

.hint-section h4 {
    color: #856404;
    margin-top: 0;
    margin-bottom: 10px;
}

.hint-section ul {
    margin-bottom: 15px;
}

.hint-section pre {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    padding: 12px;
    margin: 10px 0;
    overflow-x: auto;
    font-family: 'Courier New', monospace;
    font-size: 14px;
}

/* Responsive design */
@media (max-width: 600px) {
    .assignment-modal {
        width: 95vw;
        max-width: 95vw;
        left: 2.5vw;
        transform: none;
    }
    
    .assignment-modal .modal-content {
        padding: 15px;
        max-height: calc(85vh - 50px);
    }
    
    .assignment-modal .modal-header {
        padding: 10px 15px;
    }
}

/* Ensure proper z-index stacking */
.assignment-modal {
    z-index: 1000;
}

/* Prevent body scroll when modal is open */
body.modal-open {
    overflow: hidden;
}